Portion of an electronic mouse



FIG. 1 is a rear perspective view of a portion of an electronic mouseshowing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a left side view thereof.

The broken line showing of various regions in the Figures and theunshaded areas therein is for illustrative purposes only and forms nopart of the claimed design.

The ornamental design for a portion of an electronic mouse, as shown anddescribed.